Plant growth promoting fungi stimulate growth and confer protection against Bean yellow mosaic virus in faba bean
Plant growth promoting fungi stimulate growth and confer protection against Bean yellow mosaic virus in faba bean
Mohsen M. Elsharkawy1, Sara E. Hanbal2, Samir A. Sidaros1, Mohamed M. Elsawy2, Ali H. Hamed2
ABSTRACT
Background: Bean yellow mosaic virus (BYMV) is recognized as one of the most wide distributed virus disease affecting faba bean in Egypt.
Objective: The aim of this study is to explore the efficiency of the plant growth promoting fungi (PGPF) of Penicillium simplicissmum GP17-2, Fusarium equiseti GF19-1 and Trichoderma asperellum SKT1 as a sustainable method to control the invasion of BYMV in faba bean plants.
Methods: Faba bean plants were treated with PGPF isolates at 2 days prior to BYMV inoculation. Disease severity and virus titer were estimated at 1, 2 and 3 weeks after virus inoculation. The transcription profile related to defense genes was evaluated at 1, 2 and 3 weeks after BYMV inoculation by quantitative real-time PCR analysis.
Results: Treatments with PGPF resulted in lower virus severity and titer than the control. GP17-2 treatment exhibited the lowest disease severity and virus titer in comparison with other treatments. Quantitative real-time PCR results showed significant increased expressions of pathogenesis related genes PR1 and PR2 relative to the control plants.
Conclusion: PGPF isolates of GP17-2, GF19-1 and SKT1 elicited induced resistance against BYMV infection and could be used as a promising strategy to control BYMV.
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July 2019
Vol. 6, Pages 1-101
